Evaluation of CE angle of Wiberg for the functional outcome in various hip pathologies: an observational study

Juzer Bagwala, Susheel Soni

Abstract

Background: The objective of the study was to evaluate CE Angle of Wiberg for the functional outcome in various hip pathologies.

Methods: This is a non-randomised prospective, observational study carried out for the period of 15 months. In this study 35 hips of 28 patients with hip pathologies with age more than 5 years of both genders, hip pathologies like CAM and/or Pincer type of femoroacetabular impingement, Acetabular retroversion, Perthes like deformity, osteoarthritis hip, avascular necrosis of femoral head, developmental dysplasia of hip were studed.

Results: In this prospective study out of 28 patients 9 (32.14%) were FAI, 8 (28.57%) were OA hip, 8 (28.57%) were avascular necrosis of femoral head and 3 case (10.71%) is of Perthes' disease. In FAI cases 4(44.44%) patients were of Pincer type, 5 (55.55%) were of combined type with no any case of isolated CAM form. All were unilateral involvement with average CE angle of 32.670±11.670. In Pincer type mean CE angle was 36.250 ±7.50 while in Combined form the mean CE angle was 29.80±14.40. Out of 4 patients of Pincer FAI, 3 patients of Pincer type had CE angle between 250-400 which comes under normal range of CE angle, so all were planned for non operative management.

Conclusions: We have found that all the hip pathologies reported to us had spectrum of variations in CE angle depending on the severity of disease. Variation was maximum seen in osteoarthritis and femoroacetabular impingement, in the cases of FAI maximum was of Pincer type.